Gas or vapor heater.



i.. P. LOWE.

GAS 0R VAPOR HEATER.

APPLICATION man MAR. 15.1911:

Patented July 23, 1918.

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Specification of Letters PatentT :s i i. a se l monti-wl, Juif, EL, e'

Application filed March 15, 1917. Serial No. 154,861.

To all whom t may concern:

Be it known that I, LEON P. Lows, a citi-- zen of the United States, residing at San Francisco, vin the county of San Francisco and State of California, have invcnted'new and useful Improvements in Gas or Vapor Heaters, of which the following is a specification.

Of the numerous attempts that have been made to devise' gas stoves for heating rooms and apartments not provided with chimney flues, none has hitherto been completely satisfactory. bMany gas (heaters discharge the products of combustion directly into the room, to which there is no considerable objection it'. the gas be completely burned. Since gas, as now supplied by properly equipped utilities, is nearly always purified of sulfur and other deleterious compounds,

`thecomplete products of combustion are merely harmless carbon-dioxid and water vapor, which are the same as those exhaled by the occupants of the rooms. 1t 1s, however, 'well known that the combustion of gas by ordinary Bunsen or plain flame burners is seldom complete; also, if the flamesfrom either Bunsen or plain flame burners are designedly caused to, or inadvertently allowed to, impinge upon any material from which the heat is directed or radiated into the room, then incomplete combustion'is apt to, and frequently does, result. -When incomplete combustion occurs, there are generated carbon-monoxid, acetylene and other objectionable andl deleterious products which give rise to the` Awell-known sickly odors, perceived in a room heated by heaters having no flue connections. T o obviate the abovementioned unpleasant odors and other illeects, resulting from incomplete combustion of gas, the tendency is now to provide roomswith flues for carrying of these products, with the result that a very large percentage of the heatvalue of the, gas 1sy wasted! Although -a plain flame burner sometimes gives complete combustion under ideal conditions, these conditions do not often ob.- tain and have not heretoforedesignedly eX- istedn an e'fiieient,`scientifically constructed gas or vapor burning heater.

Ashtted vwvith'nboth Bumsenv and plain Vflame burners, the construction of'heaters has hitherto generally lbeen such that the products of combustion aredischarged di- `rectly upward, but a far more efficient result is obtained by forcefully disrluu",.in,f the products of combustion and air h i thereby, horizontally into a room rather. than verticallyupward, as, in the lutter case, most of the heat at once passes to the top of the room without'. materially benefiting the occupants.

The object of the present invention is to providea heater in which the products of combustion will be complete, and in which all of the heat value of the fuel will be efficiently utilized, and in which the heat of combustion will be discharged horizontally into the room both by radiation and convection. l

In the accompany drawing, fl `igure l is a broken perspective view ot my improved gas heater; Figs. 2 and 3 are vertical seetional views of modified forms of the invention'.

Referring to the drawing: '1 indicates a gas burner, the passage of gas through which is controlled by a valve 2. In the top of said burner are a series of holes 3, forming independent gas outlets, sufficiently close to each other so that the gas issuing from all may be ignited by lighting any one of them. If desired, lava bat-Wing tips may be inserted into holes in burner 1,'to give broad flat flames, and tips with round holes may be used', or a single narrow slot. These variations, however, form no part of my present invention. Behind said burner is an insu lating air-chamber 4 having a vertical lower portion, a horizontal upper portion, and a curved intermediate portion, this insulating chamber beingfor the purpose of protecting the Walls of rooms or other surfaces against which the heater lnay be placed, and also for the purpose of causing the radiation of an increased amount of heat from the outer surface of wall 7. Walls 7 and 5 are supported by end walls 8 and the base 9.

By means of the horizontal upper portion of the front wall 7 the heat ofl combustion of the' gas from the burners is discharged 'the fact that there is no objection to the n rents, which currents are largely caused by people moving about in. the room, but un- Wjrpclosed flames become objectionable if `they :Ire placed at a low level inthe room Where they'are materially disturbed and affected by currents which are frequent at the lower level. VI, therefore, protect from such air currents the flames from thev burner outlets 8 by not only causing the air supplied to .the gas to flow gently through the bafliing interstices of the woven wirel 11, or through other small openings into the base 9, but I- also provide a shield 12, preferably of transparent material such as glass, in front of, close to, and of a greater height than, said flames, the endsof said plate being preferably conta-ined in grooved holders 13, secured to, or formed in, the end walls 8 of the heater. If only to insure perfect cornbustion of the gas, this plate might be made of any solidincombustible material, but a transparent plate enables one to see at a glance Whether, in lighting the heater, any burner has escaped eing lighted. Moreover; the visible flames produce a more pleasant effect, which may be varied by using Art, or colored glass instead of plain transparent glass,

AThe plate 12 is also so designed and placed as to form a narrow flue which causes the heat of combustion to be. -ejected first upwardly, and then horizontally, with considerable force, ,thereby more perfectly heating the room.

In the forms of the invention shown in Figs. 2 and 3, the air-passagesM, leading to the burner, are contracted, the top of the base of the heater having, in Fig. 2, a plain sloping surface 16, to conform to a gas burner of trapezoidal cross-section, and in Fig. 3 a curved surface 17, to conform to a gas burner of circular cross-section, both of the forms being of improved and scientie design.

Thus the following advantages result from my improved construction and render it a perfect and efficient gas heater:

There is complete combustion of the gas at all times; the heat of combustion is dis'- charged horizontally into the room by both radiation and convection; flames are visible; all heat is utilized and none allowed 'to waste, giving 100 per cent. eiciency; all I iames can be ignited with a single movement; the position-of the flames are such that it will at once be seenwhether any gas has not been ignited; the conveyed heat is projected horizontally with considerable force.

It will be obvious that this hea-ter can be made in a variety of shapes a'nd designs, but I prefer the `one shown. 1

I claim:

A gas or vapor consuming heater coinprising a burner having a linear series of fuel outlets, an air conduit leading upwardly to said outlets, a continuous vertical sheet of translucent material in fr'ont of all fuel which its upper edge .extends higher than the flames from`the fuel burning at all of said outlets vand air is prevented from pass'- and ends. L. P. LOWE.

ing around its lower edge Copies of` this patent mayl be obtained for tive cents each, by addressing the vflommissioneriof IPatent Washington, D. C. A 

